Vista Service Pack 2 has been in closed beta testing since October and has now been moved into the public beta phase and is available for download. I was not able to find the beta through the normal Windows Update link on x64 Ultimate, but the DVD ISO download can be found at the Microsoft Download Center. Users can also download the executable directly in x86 or x64 form.

{ad}The update includes some excellent media upgrades that were long overdue, in my opinion, especially more Blu-Ray and HD capabilities. Other bullet points of the changes include an upgraded search function, lowered sidebar resources, and better Bluetooth and Wi-Fi capabilities. Most importantly, a great deal of crashes and incompatibilities should finally be solved. A full list of upgrades for those with a great deal of patience and reading time on their hands can be found here.